Solve the equation using the quadratic formula. Simplify irrational solutions, if possible.x2 + 8x - 5 = 0
A. {-4 ± 2
}
B. {4 ± 
}
C. {-1 ± 
}
D. {-4 ± 
}
Answer: D
Mathematics
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Solve the problem.Suppose that the velocity of a falling body is v = ks2 (k a constant) at the instant the body has fallen s meters from its starting point. Find the body's acceleration as a function of s.
A. a = 2ks2 B. a = 2k2s3 C. a = 2ks D. a = 2ks3
Mathematics
Write the given decimal as an infinite series, then find the sum of the series, and finally, use the result to write the decimal as a ratio of two integers.0.11111 . . .
A. 
B. 
C. 
D. 
Mathematics
Use the following label to answer the question(s): 
The manufacturer's lot number is __________.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the problem.Find the tangent to y = cot x at x = 
.
A. y = 2x + 1
B. y = -2x + 
+ 1
C. y = -2x + 
D. y = 2x - 
+ 1
Mathematics